100431402 has 16 divisors (see below), whose sum is σ = 205534560. Its totient is φ = 32698512.

The previous prime is 100431391. The next prime is 100431407. The reversal of 100431402 is 204134001.

It is not an unprimeable number, because it can be changed into a prime (100431407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194377 + ... + 194892.

It is an arithmetic number, because the mean of its divisors is an integer number (12845910).

Almost surely, 2^100431402 is an apocalyptic number.

100431402 is an abundant number, since it is smaller than the sum of its proper divisors (105103158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100431402 is a wasteful number, since it uses less digits than its factorization.

100431402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389317.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 100431402 is about 10021.5468865839. The cubic root of 100431402 is about 464.8253894067.

Adding to 100431402 its reverse (204134001), we get a palindrome (304565403).

The spelling of 100431402 in words is "one hundred million, four hundred thirty-one thousand, four hundred two".